Question

please answer it.......solving this question may help you for tmrw's board exam....please....​

Answer 1

Power of a lens is the ability of a lens to converge or diverge light rays to form an image.
P1= 10D
=>100/f=10
=> 10cm =f
So it is a convex lens.

P2= 5D
100/f= 5
=> f=20cm
So it is a convex lens.

P3 = -10D
-10=100/f
=> -10cm =f
So it is a concave lens.

The convex lens in case 2 and the concave lens in case 3 will form a virtual and erect image.

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Answer 2

A communication breakdown occurs when communication is incomprehensible to one party or entirely absent between two people.